The 2e wizard was so similar to the 3e wizard as to be virtually indistinguishable, from their spell list to their gear. You could probably take an AD&D wizard, recalculate their AC, BAB, and saves, and drop them into a 3e game converting everything else on the fly. I just do not agree that changes in 3e completely changed their playstyle. Daily spells in 3e were still limited. Wizards in 2e were capable of keeping their distance and casting relatively fast spells without interruption. Wizards in AD&D could largely pick their main spells, and wizards in Basic D&D could learn every wizard spell in the game. You can argue all you like, but you have this: A guy, in robes, possibly wearing bracers, with a dagger or staff, who casts some spells throughout a combat but not every round.
While I can certainly imagine you feel the 3e is too much changed, I do not think a sizeable percentage of people who reviewed both classes in the book as well as in play would agree they were very different or the 3e version was completely over the top because all of its weaknesses had been removed.
My recent 2e experience is minimal, but I have a lot of recent 1e experience. So I'll talk about that.
The 3e wizard and the 1e wizard have somewhat similar playstyles, but the 3e wizard has more power in just about every case. Bonus spells for the 3e wizard are one of the biggest differences. Larger spellbooks for 3e wizards are another, along with free choice of spells with no chance of failure to learn.
On a less mechanical note, the 3e wizard also has a much vaster library of spells available... The 1e wizard is fairly limited, on the other hand.
There's spell disruption, too - it's a gigantic factor in 1e. A 1e wizard casting a high-level spell needs to be very, very careful, because any hit will disrupt him. A 3e wizard just needs the Concentration skill to cast defensively and will never risk disruption in practice.
Spell saves are very different, too - in 1e, they're based only on the class and level of the target. In 3e, they're based on the (probably maxed + buffed) ability scores of the caster and the spell level. And spell resistance in 3e is, IME, much, much weaker with feats like Spell Penetration picking up the slack.
Also, the 1e wizard couldn't use a crossbow.

Or wear any kind of armor, and risk spell failure chances. OTOH, they could throw three darts every round, which I suppose is a perk!
-O